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为了更深入研究胆胰返流产生的原因，探讨胆石性胰腺炎病因中可能存在的解剖学因素，对２３例新鲜成人尸体标本进行了实验及解剖学观察。结果提示：①胆胰返流的产生存在解剖学原因，正常人中约８７％（２１／２３）胰管开口处和胆管之间菲薄的壶腹隔膜，可以起到“活瓣”的作用，可能是防止胆胰返流的重要结构，而该活瓣构造不全者占８％（２／２３）。②共同通道越长，则胆、胰管汇合位置越高，角度越大，造成“活瓣”样隔膜构造不全的可能性就越大，容易产生胆胰返流。这可能是共同通道过长者易发生胆石性急性胰腺炎的原因。
In order to further study the cause of biliary and pancreatic reflux, explore the anatomical factors that may exist in the etiology of gallstone pancreatitis, 23 fresh adult cadaver specimens were observed and anatomically observed. The results suggest that: ① There are anatomical reasons for the occurrence of biliary and pancreatic reflux, about 87% (21/23) of the normal population of the ampulla membrane between the opening of the pancreatic duct and the bile duct can play the role of “valve” May be an important mechanism to prevent the reflux of bile and pancreas, and the valve insufficiency accounted for 8% (2/23). The longer the common channel, the higher the bile duct and pancreatic duct confluence, the greater the angle, resulting in the possibility of “valve flap” -like membranous insufficiency, which may lead to biliary and pancreatic reflux. This may be common cause of overcrowding prone to gallstone acute pancreatitis.